Rolling Thunder®

Captains of Crush Grippers certification—the most prestigious diploma in the world of grip strength

Among his performances at the 2013 Los Angeles FitExpo, Mike Burke broke the world record for the CoC Silver Bullet, hanging on for 53.97 seconds before the Captains of Crush No. 3 gripper opened up—launching the CoC Silver Bullet. Randall Strossen photo.